如何从用户那里获取输入并在python中应用计算？

How to get input from user and apply calculation in Python?

本问题已经有最佳答案，请猛点这里访问。

我刚开始用Python。

我想从用户那里得到输入并计算它。

例：我想用t =(v sin(theta))/g得到弹丸运动的时间飞行。

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import math
print"this program will find time flight of projectile motion"
g = 9.8
##get the velocity and angle
##calculate it
##print time with some text

相关讨论

这方面的raw_input()，http：/ / / /图书馆/ 2 docs.python.org functions.html #原_输入：＜／P >

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import math
v = raw_input("please enter the velocity:")
theta = raw_input("please enter the theta (i.e. degree of liftoff):")
v, theta = float(v) , float(theta)
t = (v * math.sin(theta)) / float(9.81)
print"assuming that g = 9.81"
print"projectile motion =", t

这方面的sys.argv，http：/ / / /图书馆/ 2 docs.python.org sys.html # sys.argv ＜／P >

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import sys, math
if len(sys.argv) == 3 and sys.argv[1].replace(".","").isdigit() and sys.argv[2].replace(".","").isdigit():
v, theta = float(sys.argv[1]) , float(sys.argv[2])
t = (v * math.sin(theta)) / float(9.81)
print"assuming that g = 9.81"
print"projectile motion =", t
else:
print"Usage:","python %s velocity theta" % sys.argv[0]